diff options
| author | Dave Aldridge <david.j.aldridge@oracle.com> | 2017-05-09 02:57:35 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-14 14:00:20 +0200 |
| commit | 22d6b013ffcf4809b4fe03b240855c6f8eb54599 (patch) | |
| tree | a1207f0ce1dc3670c15b49aca1dcd5c9933186a7 /drivers/net/macsec.c | |
| parent | 7aa0e14336d977101193bef85af69b203bfba24f (diff) | |
sparc64: fix fault handling in NGbzero.S and GENbzero.S
commit 3c7f62212018b904ae17f5636ead18a4dca3a88f upstream.
When any of the functions contained in NGbzero.S and GENbzero.S
vector through *bzero_from_clear_user, we may end up taking a
fault when executing one of the store alternate address space
instructions. If this happens, the exception handler does not
restore the %asi register.
This commit fixes the issue by introducing a new exception
handler that ensures the %asi register is restored when
a fault is handled.
Orabug: 25577560
Signed-off-by: Dave Aldridge <david.j.aldridge@oracle.com>
Reviewed-by: Rob Gardner <rob.gardner@oracle.com>
Reviewed-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/macsec.c')
0 files changed, 0 insertions, 0 deletions